1998

8.4

2021

9.0

1983

6.6

2021

0.0

2005

4.8

1990

6.6

1999

6.9

2014

7.7

2006

7.5

2006

8.3

2008

8.3

1959

6.1

2016

7.8

1960

5.8

2007

6.5

1986

5.7

2015

5.3

2017

0.0

2018

6.8

1970

7.5